Predictive Factors of the Standard Cross-linking Outcomes in Adult Keratoconus: One-Year Follow-Up

Table 5

Multivariate linear regression of the baseline predictive factors and its significance on the treatment outcomes.

Baseline predictive factors	Changes in BCVA			Changes in K max
	Standardized B coefficient	Significant value	95% CI	Standardized B coefficient	Significant value	95% CI
Age	0.018	0.642	−0.053–0.087	—	—	—
UCVA (logMAR)	0.342	0.113	−0.037–0.334	−0.002	0.856	−1.544–1.287
BCVA (logMAR)	−0.800	<0.001	0.271–0.676	−0.004	0.643	−1.187–1.904
K max (D)	0.001	0.999	−0.007–0.007	0.794	0.070	0.931–1031
Thinnest pachymetry (μm)	−0.280	0.517	−0.001–0.000	−0.014	0.555	−0.006–0.003
Eccentricity of the cone (mm)	0.069	0.631	−0.053–0.087	0.618	0.0223	0.097–1.170

BCVA: best-corrected visual acuity; UCVA: uncorrected visual acuity; logMAR: logarithm of minimal angle of resolution; K max: maximum keratometry; D: diopter; CI; confidence interval; B coefficient: the value which indicates how the dependent variable will vary per unit change in the predictive variable; test used: multivariate linear regression test; significant at the value <0.05.